VOLTAGES STANDARD

(IEC 60038:2009, MOD)

Official edition

Standard and forms 2015

Foreword

The goals, basic principles and procedure for carrying out work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic Provisions” and GOST 1.2-2009 “Interstate Standardization System. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, application, updating and cancellation "

About the standard

1 PREPARED by the Open Joint Stock Company "All-Russian Scientific Research Institute of Certification" (JSC "VNIIS")

2 INTRODUCED by the Federal Agency for Technical Regulation and Metrology

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (minutes dated September 30, 2014 Ye 70-P)

Short name of the country according to MK (IS0 3166) 004-97	Country code according to MK (IS0 3166) 004-97	Abbreviated name of the national standards body
		Ministry of Economy of the Republic of Armenia
Belarus		State Standard of the Republic of Belarus
Kazakhstan		State Standard of the Republic of Kazakhstan
Kyrgyzstan		Kyrgyzstandart
		Moldova-Standard
		Rosstamdart
		Goslotrebstandart of Ukraine

4 By order of the Federal Agency for Technical Regulation and Metrology dated November 25, 2014 No. 1745-st, the interstate standard GOST 29322-2014 was put into effect as the national standard of the Russian Federation from October 1, 2015.

5 This standard has been modified from the international standard IEC 60038:2009 IEC standard voltages. At the same time, additional and amended provisions that take into account the needs of the national economy of the above states are highlighted in the text in italics, as well as a vertical line located in the margins of this text.

The international standard was developed by the International Electrotechnical Commission (IEC).

The name of this standard has been changed relative to the name of the international standard due to the specifics of the construction of the interstate standardization system.

Translation from of English language(ate).

Compliance degree - modified (MOD)

6 INSTEAD OF GOST 29322-92

Information about changes to this standard is published in the annual information index "National Standards". and the text of the amendments and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

© Standard & Form. 2015

In the Russian Federation, this standard cannot be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

Introduction

This standard specifies the rated voltages for electrical systems, networks, circuits and AC and direct current, which are used in member countries of the International Electrotechnical Commission.

This standard for construction, sequence of requirements, numbering of sections and subsections is fully consistent with IEC 60038:2009. Compared to IEC 60038:2009, this standard has been supplemented with updated references to international standards and definitions of terms.

The lowest usable voltage in Table A.1 of Appendix A of this standard is defined for the maximum voltage drop between the user's installation input and the electrical equipment, which is 4 %. Such a maximum voltage drop in the electrical circuits of an electrical installation was indicated in the previous standard - 8 Table G.52.1 of the current standard for electrical installations connected to public electric networks, other values ​​\u200b\u200bof the maximum voltage drop are established:

for electric lamps - 3%; for other electrical receivers - 5%.

Requirements in this International Standard are in roman type, with notes in small roman type. Updated references and additional and amended provisions appear in italics in the text.

INTERSTATE STANDARD

VOLTAGES STANDARD

standard voltages

Introduction date - 2015-10-01

1 area of ​​use

This standard applies:

For electrical systems alternating current with a rated voltage of more than 100 V and a standard frequency of 50 Hz or 60 Hz, used for the transmission, distribution and consumption of electricity, and electrical equipment used in such systems:

For AC and DC traction systems:

On AC electrical equipment with a rated voltage of less than 120 6 and a frequency (usually, but not only) of 50 or 60 Hz, DC electrical equipment with a rated voltage of less than 750 8. Such equipment includes batteries (from cells or accumulators), other power sources AC or DC, electrical equipment (including industrial and communications) and household electrical appliances.

This standard does not apply to voltages used for receiving and transmitting signals or for measurements. This standard does not apply to the standard voltages of components or parts used in electrical devices or electrical equipment.

This standard specifies standard voltage values ​​that are intended to be used as:

Preferred values ​​for the rated voltage of electrical power systems:

Reference values ​​for electrical equipment and designed electrical systems.

Notes

1 Two main reasons led to the values ​​specified in this standard:

The rated voltage values ​​(or highest voltage for electrical equipment) specified in this standard are primarily based on historical development electrical power systems around the world, as these values ​​​​turned out to be the most common and received worldwide recognition:

The voltage ranges specified in this standard have been found to be the most suitable as a basis for the design and testing of electrical equipment and systems.

NOTE 2 However, it is the task of standards systems and product standards to determine the appropriate test values, test conditions and acceptance criteria.

2 Terms and definitions

8 of this standard, the following terms are used with their respective definitions. For AC voltages, the RMS values ​​are given below.

nominal system voltage appropriate approximation of voltage used to designate or identify a system

[section 601-01. article 21]_

Official edition

2.5 supply voltage voltage between phases or voltage between phase and neutral at the supply terminals

2.4 supply terminals electrical network, designated as such and defined by the contract, in which the parties to the contract exchange electrical energy.

NOTE An equivalent definition is line-to-line voltage or line-to-neutral voltage at the terminals.

2.6 supply voltage range voltage range at the supply terminals

2.7 utilization voltage phase-to-phase or phase-to-neutral voltage at socket-outlets or fixed installation points to which electrical receivers are to be connected

NOTE Equivalent definition: line-to-line voltage or line-to-neutral voltage at socket-outlets or fixed installation points to which electrical receivers are to be connected.

2.8 utilization voltage range

NOTE In some electrical standards (eg IEC 60335-1 and IEC 60071). the term "voltage range" has a different meaning.

2.9 highest voltage for equipment highest voltage for which electrical equipment is characterized with respect to:

a) insulation:

b) other characteristics that may be associated with this highest voltage in the relevant recommendations for electrical equipment.

NOTE Electrical equipment may only be used in electrical systems having a higher voltage that is less than or equal to its highest voltage for electrical equipment.

3 Standard voltages

3.1 Systems and electrical equipment of alternating current with a rated voltage from 100 to 1000 V inclusive

The rated voltage of the AC system in the range of 100 to 1000 V should be selected from the values ​​given in Table 1.

Table 1 - AC systems and electrical equipment with a rated voltage from 100 to 1000 V inclusive

Rated voltage of three-phase four-wire or three-wire systems. AT		Rated voltage of single-phase three-wire systems. AT
“ The 230/400V value is the result of the evolution of the 220/330V and 240/415V systems that have ended in use in
Europe and in many other countries. However, 220/360 V and 240/415 V systems are still in use.
*" The 400/690 V value is the result of the 360/660 V option being discontinued in Europe and many other countries. However, the 380/660 V system is still in use today. ° The value 200 or 220 V is also used in some countries
4 ’ 100/200 V values ​​are also used in some countries on 50 or 60 Hz systems.

8 Table 1 three-phase four-wire systems and single-phase three-wire systems include single-phase electrical circuits connected to these systems.

Smaller values ​​in the first and second columns are phase-to-neutral voltages, larger values ​​are phase-to-phase voltages. If one value is specified, it refers to three-phase, three-wire systems and sets the voltage between phases. The lower value in the third column is the voltage between phase and neutral, the higher value is the voltage between phase conductors.

Voltages exceeding 230/400 V. are intended for use in heavy industry and in large commercial enterprises.

Under normal operating conditions, the supply voltage should not differ from the rated voltage of the system by more than ±10%.

The range of voltage used depends on the voltage variation at the supply terminals and the voltage drop that may occur in a consumer electrical installation, for example - a building electrical installation. For more information see . This range of usable voltage should be taken into account by the technical committees for standardization.

Note - The highest and lowest voltages at the supply terminals and at the terminals of the electrical receiver are given in Appendix A for information. They can be calculated as above and according to .

3.2 AC and DC traction systems

AC or DC traction system voltages should be selected from the values ​​given in Table 2.

Table 2 - Traction systems of direct and alternating current * "

In vain not, V_ Rated frequency for

I Least		Rated	Greatest	systems variable g os. Hz
DC systems
Single phase systems
alternating current

m Values ​​given in parentheses are considered to be the default crucible and values. These values ​​are not recommended for use on new systems being built in the future. In particular, for single-phase AC systems, the 62SOV voltage should only be used when local conditions do not permit the use of the 25,000V nominal voltage.

The values ​​given in the table are those adopted by the International Committee for Electrical Equipment and IEC Technical Committee 9 Electrical Equipment and Systems for Railways*.

* In some European countries, this voltage can reach 4000V. Electrical Equipment Traislortnmh:reds'e. participating in international traffic with these countries, must withstand this maximum value “apryaeiii e for short periods of time up to S min.

3 3 Three-phase systems and electrical equipment of alternating current with a rated voltage over 1 to 35 kV inclusive

Voltage for three-phase system alternating current with a rated voltage over 1 to 35 kV inclusive should be selected from the values ​​given in Table 3.

Table 3 - Three-phase systems and electrical equipment of alternating current with a rated voltage over 1 to 35 kV inclusive - "

The highest voltage for	Rated system voltage.			The highest voltage for		Rated voltage
electrical equipment, kV							systems. kV

2 in a normal system of row I, the highest and lowest voltages do not differ by more than N.O. (> approximately) from the rated voltage of the system. In a normal row II system, the highest voltage does not differ by more than "5%. and the lowest voltage is more than -10% of the rated voltage of the system

*" These systems are typically three-phase systems unless otherwise noted. Values ​​shown are voltages between phases.

Values ​​given in parentheses are considered to be inappropriate values. These values ​​are not recommended for new systems being built in the future.

** These values ​​should not be used for new general purpose distribution systems.

^ These systems are usually 4-pass systems and the values ​​shown are line-to-line voltages The line-to-neutral voltage is equal to the listed value divided by 1.73.

41 Unification of these values ​​under consideration

“Values ​​of 22.9 kV for nominal voltage and 24.2 or 25.8 kV for highest voltage for electrical equipment are also used in some countries.

3.4 Three-phase systems and electrical equipment of alternating current with a rated voltage over 35 to 230 kV inclusive

Voltages for a three-phase AC system with a rated voltage above 35 kV up to and including 230 kV should be selected from the values ​​given in Table 4.

Table 4 - Three-phase systems and electrical equipment of alternating current with a rated voltage over 35 to 230 kV inclusive *

The highest voltage for		Rated system voltage. kV
" Values ​​in parentheses are considered non-preferred values. These values ​​are not recommended for new installations in the future. Values ​​are voltages between phases

Above are two kinds rated voltages systems. In any country, only one of the two rows is recommended.

8 in any country, it is recommended that only one of the following groups be used as the highest voltage for electrical equipment:

123 or 145 kV;

245 or 300 kV (see table 5) or 362 kV (see table 5).

3.5 Three-phase alternating current systems with the highest voltage for electrical equipment over 245 kV

The highest voltage for electrical equipment for a three-phase AC system exceeding 245 kV should be selected from the values ​​given in Table 5.

Table 5 - Three-phase alternating current systems with the highest voltage for electrical equipment over 245 kV *:

Maximum voltage for electrical equipment, kV

"The swings given in brackets are considered to be the preferred swings. These values ​​are not recommended for new builds in the future. The values ​​are voltages between phases.

"The value of 526 square meters is also used.

The value of 7v5 kV is also used. The voltage values ​​used in the three tests of electrical equipment shall be those specified by IEC for 765 kV.

In any geographic region, only one of the following groups is recommended as the highest voltage for electrical equipment:

245 (see Table 4) or 300 or 362 k8:

362 or 420 kV:

420 or 550 kV:

1100 or 1200 kV.

NOTE The term "geographical region" may indicate one country, a group of countries that agree to accept the same voltage level, or part of a very large country.

3.6 Electrical equipment of alternating current with a rated voltage of less than 120 V and direct current with a rated voltage of less than 750 V

Rated voltage less than 120 and 750 V for AC and DC electrical equipment, respectively, should be selected from the values ​​given in Table 6.

Table 6 - Electrical equipment for alternating current with a rated voltage less than 120 V and direct current with a rated voltage less than 750 V

D.C
Preferred, in		Preferred. AT

Notes

1 Since the voltage of the cells or accumulators is less than 2.4 V, and the choice of the type of >cell or accumulator used for various areas of use is based on criteria other than that of the voltage. these voltages are not listed in the tab. The relevant IEC technical committees may lay down cell or accumulator types and corresponding voltages for specific applications.

2 For technical and economic reasons, other voltages may be required for specific applications.

Annex A

(reference)

The highest and lowest voltage values ​​​​at the power supply terminals and electrical receivers for AC systems with a rated voltage from 100 to 1000 V inclusive

Table A.1 shows the highest and lowest voltages at the power and electrical receiver terminals. They can be calculated using the data in Table 1 of Section 4 of this standard and the guidelines given in.

Notes

1 The values ​​in Table A.1 are based on the note to section 525. which states: “In the absence of other considerations, it is recommended that in practice the voltage drop between the input to the user's electrical installation and the electrical equipment should not exceed 4% of the rated voltage of the electrical installation. Section 525 is pending. In the future, the values ​​for the lowest usable voltage may be changed in accordance with the revision.

2 The standard has been superseded by the standard . in Table C. 52.1 of Appendix G of which, for electrical installations connected to public electric networks, the following maximum voltage drops are established: for electric lamps - 3 96. for other electric devices - 5%.

Table A.1 - Maximum and minimum voltages at the supply and electrical receiver terminals for a.c. systems with a rated voltage from 100 to 1000 V inclusive

		Voltage
	Rated frequency. Hz	The highest supply voltage or voltage. AT	Rated voltage. AT	The smallest litany. AT	The lowest usable voltage. AT
Three-phase four-wire or
three-way systems
Ediophaeic sin-conducting systems

* The 230/400V value is the result of the evolution of the 220/360V and 240/415V systems. “The latter have ended use in Europe and in many other countries. However, 220/380 V and 240/415 V systems are still in use.

m The value of 400/690 V is the result of the evolution of the 380/660 V system, which was completed in Europe and in

none other countries. However, the 380/660 V system is still in use.

“ The value 200 or 220 V is also used in some countries.

100/200 V values ​​are also used in some countries on SO or 60 Hz systems.

(1] IEC 60050-601:1995

(2] IEC 60335-1:2013

(4] IEC 60050-826:2004

(5J GOST 30331.1-2013 (6] IEC 60364-5-52:2009

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